/Engine/Source/Editor/UnrealEd/Classes/CookOnTheSide/CookOnTheFlyServer.h
Return the chain of instigators that caused the package to be requested by the cook. First element is the direct instigator of the package, last is the root instigator that started the chain.
virtual [TArray](API\Runtime\Core\Containers\TArray)< [UE::Cook::FInstigator](API\Runtime\CoreUObject\UObject\FInstigator) > GetInstigatorChain ( [FName](API\Runtime\Core\UObject\FName) PackageName )